WorksheetsChemistry 2 Quiz - Unit 1
Total questions: 66
Worksheet time: 36mins
What is the branch of chemistry that deals with covalently-bonded, carbon-containing compounds?
Inorganic Chemistry
Embalming Chemistry
Organic Chemistry
Thanatochemistry
What is the combining capacity of carbon, or asked another way, the number of bonds around each carbon atom?
Two
Three
Four
Six
Which of the following statements is true about organic compounds?
They are usually non-flammable.
They are not soluble in organic solvents.
They have a lower molecular weight than inorganic compounds.
They are usually flammable.
What type of bonding is primarily found in organic compounds?
Ionic Bonding
Covalent Bonding
Metallic Bonding
Hydrogen Bonding
What is a characteristic of inorganic compounds regarding their solubility?
Soluble in organic solvents
Soluble in water
Insoluble in water
Insoluble in any solvents
What is the maximum number of bonds that can be used to connect two carbon atoms?
One bond
Two bonds
Three bonds
Four bonds
What is the combining capacity of oxygen?
1
2
3
4
What is the combining capacity of nitrogen?
1
2
3
4
How many bonds does hydrogen form as per its combining capacity?
1
2
3
4
What is an alkyl group/radical (R) in organic chemistry?
A saturated hydrocarbon with one hydrogen atom added
A saturated hydrocarbon with one hydrogen atom removed
An unsaturated hydrocarbon with one hydrogen atom removed
A functional group that does not attach to other atoms
What is the general formula for hydrocarbons?
R-H
R-OH
R-CO-R
R-CH3
Which of the following is the correct representation of a methyl radical?
CH4
C2H5
CH3
C3H7
What does the 'R' symbol in organic chemistry generally denote?
A specific hydrocarbon
A functional group
A radical or alkyl group
A particular compound
Which of the following is not a correct general formula?
R-H for any hydrocarbon
R-OH for any alcohol
R-CO-R for any ketone
R-CH3 for any alkane
What does a molecular formula indicate about the elements in a molecule?
The spatial arrangement of the atoms
The exact number of atoms of each element without showing how they are linked
The color of the substance
The physical state of the substance at room temperature
What is the molecular formula of ethanol?
CH4
C2H5OH
CH2O
C2H6O
What is the molecular formula of formaldehyde?
CH4
C2H5OH
CH2O
C2H6O
Why is the structural formula often referred to as the "blueprint" of a molecule?
Because it shows the color of the molecule
Because it only shows the number of atoms
Because it shows the actual placement of each atom and bond
Because it indicates the molecular weight
What is the line formula for Ethanol as given in the learning material?
CH3OH
C2H5OH
C2H6O
HCHO
Which functional group is represented by (OH) in the line formula for Ethanol?
Aldehyde
Carboxylic acid
Alcohol
Ketone
What is the molecular formula for Ethanol?
C2H4O
C2H5OH
C2H6O
CH3OH
What is the line formula for Formaldehyde as given in the learning material?
CH3OH
C2H5OH
C2H6O
HCHO
In the line formula for Formaldehyde, what does the (CHO) group represent?
Alcohol
Aldehyde
Ketone
Ester
What is the general molecular formula for alkanes?
CnH2n+2
CnH2n
CnH2n-2
CnH2n+1
What is the general molecular formula for alkynes?
CnH2n+2
CnH2n
CnH2n-2
CnH2n+1
What is the general molecular formula for alkenes?
CnH2n+2
CnH2n
CnH2n-2
CnH2n+1
What is the molecular formula for butene?
(a)
What is the molecular formula for octyne?
(a)
What is the general molecular formula for an alkyl group or radical derived from alkanes?
CnH2n+2
CnH2n
CnH2n-2
CnH2n+1
What is the alkyl group or radical derived from methane?
(a)
What is the alkyl group or radical derived from hexane?
(a)
What suffix is used when naming a saturated hydrocarbon or alkane?
YL
ANE
OH
CHO
What is the process of forming an isomer called?
Substitution
Isomerism
Hydrogenation
Dehydration
What is the main difference between isomers?
They have different molecular formulas.
They have different numbers of atoms.
They have the same molecular formula but different structural properties.
They are different compounds of the same class.
What is the molecular formula for both propanal and dimethyl ketone (they're isomers of one another)?
C2H5CHO
CH3COCH3
C3H8O
C3H6O
Which functional group placement differentiates propanol from isopropyl alcohol?
Propanol's hydroxyl group (-OH) is at the end of the carbon chain
Carbonyl group (=O) at the end of the carbon chain
Propanol's hydroxyl group (-OH) is in the middle of the carbon chain
Carbonyl group (=O) in the middle of the carbon chain
What class of compound is propanal?
Ketone
Aldehyde
Alcohol
Acid
What class of compound is dimethyl ketone?
Ketone
Aldehyde
Alcohol
Acid
What does the term 'aliphatic' imply about a compound's structure?
The compound contains a ring structure.
The compound has a branched chain structure.
The compound has an open chain structure.
The compound includes a double bond.
Which of the following is an example of an aliphatic alcohol?
Cyclopropane
Isopropyl alcohol
Formaldehyde
Benzene
What is created when the C=O group is at the end of a radical?
A ketone
An aldehyde
An alcohol
An alkene
What is formed when the C=O group is positioned between two radicals?
An aldehyde
An alcohol
A ketone
An alkene
What does 'carbocyclic' mean in terms of compound structure?
The compound has an open chain structure.
The compound has a closed chain or ring structure.
The compound contains only carbon and hydrogen atoms.
The compound is derived from a carbohydrate.
Which of the following is not an example of an aliphatic hydrocarbon?
Alkanes
Alkenes
Alkynes
Cyclopropane
What is the minimum number of carbon atoms required to form a closed chain in aromatics?
1
2
3
4
Which of the following statements is true about aromatics?
They are not associated with any type of odor or smell.
They are a subgroup of aliphatics.
They contain a resonance-stabilized ring such as benzene.
Their electrons are fixed near a given atom.
What is benzene?
A saturated hydrocarbon with a five carbon ring.
An unsaturated hydrocarbon with a six carbon ring and no double bonds.
A saturated hydrocarbon with a six carbon ring and alternating single bonds.
An unsaturated hydrocarbon with a six carbon ring and alternating double bonds.
What is the aromatic radical also known as?
Alkyl Radical
Phenyl Radical
Methyl Radical
Ethyl Radical
How is the aromatic radical formed?
By adding a hydrogen to benzene.
By removing a hydrogen from benzene.
By breaking the benzene ring.
By adding a double bond to benzene.
What is a heterocyclic compound characterized by?
Carbon atoms in a closed chain with no other elements
Carbon atoms in a closed chain including atoms of some other element
Carbon atoms in an open chain with no other elements
Carbon atoms in an open chain including atoms of some other element
According to the text, a compound with 5 to 16 carbon atoms is generally in what state of matter?
Gas
Liquid
Solid
Plasma
What state of matter would a compound with 17 or more carbon atoms most likely be?
Gas
Liquid
Solid
Plasma
If a compound has less than 5 carbon atoms (1-4), it will most likely be in the form of a:
Gas
Liquid
Solid
Plasma
What is the molecular formula for butane?
CH₄
C₂H₆
C₄H₁₀
C₅H₁₂
Which prefix is used for an alkane with seven carbon atoms?
hex-
hept-
oct-
non-
What does the suffix '-ane' in the name of alkanes indicate?
The presence of double bonds
The presence of triple bonds
The presence of single bonds only
The presence of a benzene ring
How many carbon atoms are there in a molecule of octane?
6
7
8
9
Which of the following is the correct molecular formula for nonane?
C₉H₁₈
C₉H₂₀
C₁₀H₂₀
C₁₀H₂₂
What is the correct IUPAC name for the compound CH₃CH₂CH₂CH₂CH₃ (a.k.a. C5H12)?
Methane
Ethane
Pentane
Octane
What is the correct IUPAC name for the compound CH₃CH₃?
Methane
Ethane
Propane
Butane
How many carbon atoms are in propane
1
2
3
4
The "ane" ending in "alkane" tells someone that they are dealing with _________-bonded carbons.
single
double
triple
quadruple
